Here are 10 one-word answer type questions from the topic Speed with their answers and explanations:
Topic: Speed
Speed is defined as the distance covered by an object in unit time. It tells us how fast or slow an object is moving. Speed is calculated by dividing the distance covered by the time taken.
1. Question: What is the distance covered by an object in unit time called?
Answer: Speed
Explanation: Speed is the measure of how much distance an object covers in a specific amount of time.
2. Question: What is the SI unit of speed?
Answer: m/s
Explanation: The standard unit of speed is metre per second (m/s) in the SI system.
3. Question: What is the device called that measures the speed of a vehicle?
Answer: Speedometer
Explanation: A speedometer shows the speed at which a vehicle is moving.
4. Question: What is the formula to calculate speed?
Answer: Distance/Time
Explanation: Speed is calculated by dividing the total distance travelled by the total time taken.
5. Question: What type of speed is calculated by dividing total distance by total time?
Answer: Average
Explanation: Average speed is used when the speed of an object is not constant during the journey.
6. Question: What type of motion is represented by a straight line in a distance-time graph?
Answer: Uniform
Explanation: When the distance-time graph is a straight line, it indicates uniform speed.
7. Question: Which animal is the fastest on land as per the textbook example?
Answer: Cheetah
Explanation: The cheetah is known for its high speed, making it the fastest land animal.
8. Question: Which term is used when an object covers unequal distances in equal time intervals?
Answer: Non-uniform
Explanation: If the speed of an object keeps changing, its motion is called non-uniform motion.
9. Question: What is measured by an odometer in a vehicle?
Answer: Distance
Explanation: Odometer is a device used to measure the total distance travelled by a vehicle.
10. Question: What is the speed of a rocket launching satellites into Earth’s orbit? (as per textbook)
Answer: 8 km/s
Explanation: Rockets move at very high speeds, up to 8 kilometres per second, while launching satellites.
If you want, I can prepare all your question sets in a student worksheet format with blanks, answer key, and explanations together.
Shall I do that?
